@article{AIF_1992__42_4_737_0,
     author = {Massey, David B. and Siersma, Dirk},
     title = {Deformation of polar methods},
     journal = {Annales de l'Institut Fourier},
     pages = {737--778},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {42},
     number = {4},
     year = {1992},
     doi = {10.5802/aif.1308},
     mrnumber = {94h:32059},
     zbl = {0760.32017},
     language = {en},
     url = {http://archive.numdam.org/articles/10.5802/aif.1308/}
}